Curse of Strahd
These pastries look and taste like small mincemeat pies. Made with the bones of the innocent, the hags’ dream pastries allow Barovians to enter a trance, wherein they can escape to heavenly places full of joy. While in the trance, the creature dreams of being in some joyous place, far removed from the evils of the world. The places and characters in the dream are vivid and believable, and when the dream ends, the affected creature experiences a longing to return to the place. When adults can no longer afford the hag’s dream pastries, the hags offer to trade their pastries for the Barovians’ children, thus preying on the adults’ selfishness while acquiring the ingredients they need to make more pastries. This is how the hags sow corruption in Strahd’s domain and why they don’t take the children by force. The hags are interested only in children who have souls. They prick each child with a needle; if the child cries, that’s a sign that the infant has a soul.